[ 3165.165305][T27757] gre: GRE over IPv4 demultiplexor driver
[ 3166.434790][T27780] ip_gre: GRE over IPv4 tunneling driver
[ 3203.420706][T28351] ip6_gre: GRE over IPv6 tunneling driver
[ 3220.581795][T28645] ping (28645) used greatest stack depth: 22448 bytes left
[ 3227.673645][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3231.449566][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3234.714560][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3238.490583][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!